Home / 142,920.76-214,382.95-54,150.42

Finding the Fourth Proportional to 142,920.76, 214,382.95 and 54,150.42

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Solution

The fourth proportional to 142,920.76, 214,382.95 and 54,150.42 is: 81,226.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,920.76 : 214,382.95 = 54,150.42 : x
  2. Step 2: Convert to fraction form
    142,920.76/214,382.95 = 54,150.42/x
  3. Step 3: Cross multiply
    142,920.76x = 214,382.95 × 54,150.42
  4. Step 4: Simplify right side
    142,920.76x = 11,608,926,783.34
  5. Step 5: Solve for x
    x = 11,608,926,783.34/142,920.76
  6. Step 6: Final answer
    x = 81,226.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.